Nikira Labs Inc.

Rupal Gupta

Manish P Gupta

John Brian Leen

A cell for an optical cavity includes a tube with a first open-end and a second open-end, a first end-cap, and a second end-cap. The first end-cap is fixedly attached to the tube at the first open-end and has an opening with a center axis. The second end-cap is fixedly attached to the tube at the second open-end and has an opening with a center axis that is axially aligned with the center axis of the first end-cap.

Cell and optical cavity for absorption spectroscopy and methods of assembly

An optical system for performing an absorption measurement of a medium sample includes a laser source configured to output a laser beam having a wavelength corresponding to an absorption region of interest; a ringdown cavity comprising a chamber configured to receive the medium sample, an input mirror at an input end, an output mirror at an output end, and an optical axis that extends through the centers of the input mirror and the output mirror; a coupling device configured to couple the laser beam through the input mirror into the chamber; and a detector optically coupled with the cavity, and configured to detect an intensity of light of the wavelength corresponding to the absorption region of interest that extends through the output mirror, wherein a cavity geometry of the cavity increases the re-entrant condition of the cavity relative to a conventional cavity comprised of two spherical mirrors.

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Mountain View, CA, United States of America

Rupal Gupta